Great to see you resolved that issue NavyBob.
All Minelab metal detectors allow you to adjust the settings to suit your hearing. In fact they HAVE to be adjusted to suit your individual hearing as everyone's hearing is different. There is a good video of this on YouTube somewhere where the inventor of the minelab detectors explains this. The threshold and tone controls are the one he talks about.
Garrett's videos also explain this.
All Minelab metal detectors allow you to adjust the settings to suit your hearing. In fact they HAVE to be adjusted to suit your individual hearing as everyone's hearing is different. There is a good video of this on YouTube somewhere where the inventor of the minelab detectors explains this. The threshold and tone controls are the one he talks about.
Garrett's videos also explain this.